NO20074236L - Current-compliant analog-to-digital converter and method of use - Google Patents

Current-compliant analog-to-digital converter and method of use

Info

Publication number
NO20074236L
NO20074236L NO20074236A NO20074236A NO20074236L NO 20074236 L NO20074236 L NO 20074236L NO 20074236 A NO20074236 A NO 20074236A NO 20074236 A NO20074236 A NO 20074236A NO 20074236 L NO20074236 L NO 20074236L
Authority
NO
Norway
Prior art keywords
current
signal
digital converter
adc
sensing analog
Prior art date
Application number
NO20074236A
Other languages
Norwegian (no)
Inventor
Arne Aas
Gunnar Gangsto
Original Assignee
Atmel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Atmel Corp filed Critical Atmel Corp
Publication of NO20074236L publication Critical patent/NO20074236L/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/458—Analogue/digital converters using delta-sigma modulation as an intermediate step
    • H03M3/462—Details relating to the decimation process
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
    • G01R19/2506—Arrangements for conditioning or analysing measured signals, e.g. for indicating peak values ; Details concerning sampling, digitizing or waveform capturing
    • G01R19/2509—Details concerning sampling, digitizing or waveform capturing

Abstract

En strømfølende analog-til-digital-konverter (CS-ADC, current sensing analog to digital converter) blir beskrevet. Den strømfølende analog-til-digital-konverteren omfatter en modulator innrettet for å føle en endring i strøm og generere et oversamplet signal. Konverteren inkluderer videre et desimeringsfiltersystem tilkoplet modulatoren for å fjerne utenfor-båndet-støy fra signalet og redusere dataraten for å oppnå et høyoppløselig signal. En strømfølende analog-til-digital-konverter (CS-ADC) blir beskrevet, som sampler strømflyten ved ladning eller utladning gjennom en ekstern følermotstand RSENSE. Samplet fra RSENSE prosesseres av en delta-sigma-modulator som genererer et oversamplet støyformet signal. Fra dette signalet fjerner et desimeringsfiltersystem utenfor-båndet-støy og reduserer dataraten for å oppnå et høyoppløselig signal. CS-ADC'en tilbyr også detektering av jevn strøm. Detekteringen av jevn strøm sammenlikner data fra omformingen med terskelverdinivåer for ladning/utladning spesifisert av brukeren. For å spare energi tilbys en spesiell modus der brukeren konfigurerer samplingsintervallet for jevn strøm. Dette tillater operasjon med ultra-lavt energiforbruk i energiparingsmodus når små ladnings- eller utladningsstrømmer flyter. ?? ?? ?? ??A current-sensing analog-to-digital converter (CS-ADC, current sensing analog to digital converter) is described. The current-sensing analog-to-digital converter comprises a modulator adapted to sense a change in current and generate an oversampled signal. The converter further includes a decimation filter system connected to the modulator to remove out-of-band noise from the signal and reduce the data rate to obtain a high-resolution signal. A current-sensing analog-to-digital converter (CS-ADC) is described, which samples the current flow by charging or discharging through an external sensor RSENSE. The sample from RSENSE is processed by a delta-sigma modulator which generates an oversampled noise-shaped signal. From this signal, a decimation filter system removes out-of-band noise and reduces the data rate to obtain a high-resolution signal. The CS-ADC also offers steady current detection. The steady-state detection compares data from the conversion with threshold / discharge threshold levels specified by the user. To save energy, a special mode is offered where the user configures the sampling interval for steady current. This allows operation with ultra-low energy consumption in energy saving mode when small charge or discharge currents flow. ?? ?? ?? ??

NO20074236A 2005-01-19 2007-08-20 Current-compliant analog-to-digital converter and method of use NO20074236L (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US64546005P 2005-01-19 2005-01-19
US11/043,648 US7113122B2 (en) 2005-01-19 2005-01-25 Current sensing analog to digital converter and method of use
PCT/US2006/001763 WO2006078735A2 (en) 2005-01-19 2006-01-18 Current sensing analog to digital converter and method of use

Publications (1)

Publication Number Publication Date
NO20074236L true NO20074236L (en) 2007-08-20

Family

ID=36683321

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20074236A NO20074236L (en) 2005-01-19 2007-08-20 Current-compliant analog-to-digital converter and method of use

Country Status (6)

Country Link
US (2) US7113122B2 (en)
EP (1) EP1847003B1 (en)
DE (1) DE602006017658D1 (en)
NO (1) NO20074236L (en)
TW (1) TWI336566B (en)
WO (1) WO2006078735A2 (en)

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US7913100B2 (en) * 2007-09-29 2011-03-22 Intel Corporation Opportunistic initiation of data traffic
US8436620B2 (en) 2010-09-02 2013-05-07 Texas Instruments Incorporated Voltage monitoring using bitstream signal processing
US8843538B2 (en) 2010-12-22 2014-09-23 Atmel Corporation Measuring sum of squared current
US9195286B2 (en) 2012-03-26 2015-11-24 Mediatek Inc. Method for performing power consumption control, and associated apparatus
US9190862B2 (en) * 2012-08-23 2015-11-17 Qualcomm Incorporated Charging current calibration
WO2014198702A2 (en) * 2013-06-13 2014-12-18 Zentrum Mikroelektronik Dresden Ag Power converter with current sensing
GB201508003D0 (en) * 2015-05-11 2015-06-24 Oxford Nanopore Tech Ltd Apparatus and methods for measuring an electrical current
US20170295623A1 (en) * 2016-04-11 2017-10-12 Locoroll, Inc. Intelligent lighting control power measurement apparatuses, systems, and methods
US10097200B1 (en) 2017-05-12 2018-10-09 Analog Devices Global Resynchronization of sample rate converters
US10936774B1 (en) * 2018-02-15 2021-03-02 Real Intent, Inc. Methods for identifying integrated circuit failures caused by reset-domain interactions
US11050435B1 (en) * 2020-04-24 2021-06-29 Synaptics Incorporated Sample rate conversion circuit with noise shaping modulation
US11200184B1 (en) 2020-12-22 2021-12-14 Industrial Technology Research Institute Interrupt control device and interrupt control method between clock domains
WO2023066423A1 (en) * 2021-10-19 2023-04-27 Elmos Semiconductor Se Device and method for detecting an electrical current with an optimised sampling rate
CN116742756B (en) * 2023-07-28 2024-01-23 武汉景捷半导体有限公司 Method, circuit, system and readable storage medium for controlling charging current based on charger

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US5278487A (en) * 1988-03-15 1994-01-11 Norand Corporation Battery conditioning system having communication with battery parameter memory means in conjunction with battery conditioning
US5408235A (en) * 1994-03-07 1995-04-18 Intel Corporation Second order Sigma-Delta based analog to digital converter having superior analog components and having a programmable comb filter coupled to the digital signal processor
US5909188A (en) * 1997-02-24 1999-06-01 Rosemont Inc. Process control transmitter with adaptive analog-to-digital converter
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US6081216A (en) * 1998-06-11 2000-06-27 Motorola, Inc. Low-power decimator for an oversampled analog-to-digital converter and method therefor
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Also Published As

Publication number Publication date
EP1847003A2 (en) 2007-10-24
TWI336566B (en) 2011-01-21
TW200637164A (en) 2006-10-16
EP1847003A4 (en) 2009-04-29
DE602006017658D1 (en) 2010-12-02
WO2006078735A3 (en) 2006-09-21
WO2006078735A2 (en) 2006-07-27
EP1847003B1 (en) 2010-10-20
US7113122B2 (en) 2006-09-26
US20060158363A1 (en) 2006-07-20
US20060284753A1 (en) 2006-12-21
US7292174B2 (en) 2007-11-06

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